The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 27, 2026
Filed:
Mar. 20, 2023
Ntn Corporation, Osaka, JP;
NTN CORPORATION, Osaka, JP;
Abstract
To provide a rolling bearing cage that is superior in heat resistance and realizes superior moldability even in a case in which the cage has a thick wall, and a rolling bearing using the cage. A cageis an annular rolling bearing cage formed by injection-molding a resin composition. The rolling bearing cageincludes rolling elements and a plurality of pocketsfor retaining the rolling elements. A thickness in a radial direction of an axial end surfaceof the cageis 2.00 mm or more. The resin composition contains polyamide resin as a base resin. The polyamide resin is copolymerized polyamide containing a hexamethylene terephthalamide unit and a hexamethylene adipamide unit as a constitutional unit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile